| Abbreviation | Definition |
|---|---|
| JBC | Joint Budget Committee |
| JC | Johnson City |
| JCCO | Jewish Community Council of Ottawa |
| JCMS | Jefferson County Medical Society |
| JCRA | Jersey City Redevelopment Agency |
| JCRA | Jersey Competition Regulatory Authority |
| JCRA | Judicial Campaign Reform Act |
| JCS | Jurupa Community Services |
| JCSA | James City/County Service Authority |
| JCSB | Jackson County School Board |
| JCSL | Jackson County Sanitary Landfill |
| JCSN | Jackson County Sustainability Network |
| JCVI | Joint Committee on Vaccination and Immunization |
| JEDI | Job and Economic Development Impact |
| JEGS | Job Evaluation and Grading Support |
| JEPP | Joint Emergency Preparedness Program |
| JF | Jefferson Forest |
| JF | Juniper Flats |
| JFM | Joint Forest Management |
| JFO | Joint Fiscal Office |